| Europe's Busiest Airports | 0 | - | 4.92 | 134,679 |
| World's Busiest Airports | 0 | - | 4.94 | 191,155 |
| Countries with the Most Airports | 0 | - | 4.96 | 82,852 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,742,793 |
| Airport Codes Quiz #1 | 0 | - | 4.79 | 192,664 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 362,494 |
| Top World Languages | 0 | - | 4.92 | 722,933 |
| Busiest Airports in the United States | 0 | - | 4.57 | 128,318 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 84,158 |
| Places in their Native Language #1 | 0 | - | 4.86 | 213,519 |
| Places in their Native Language #2 | 0 | - | 4.89 | 114,543 |
| Cities by Airports | 0 | - | 4.51 | 82,280 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 118,532 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 106,037 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 96,081 |
| Busiest Air Routes in the World | 0 | - | 4.52 | 35,556 |
| Airports Named for People #1 | 0 | - | 4.45 | 53,585 |
| Countries by Airline Passengers | 0 | - | 4.91 | 49,753 |
| World Currency Quiz | 0 | - | 4.92 | 250,963 |
| Boundary Waters | 0 | - | 4.93 | 82,006 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,357 |
| Lonely Planet Top 200 Cities | 0 | - | 4.58 | 211,382 |
| Cities with the Most International Tourists | 0 | - | 4.46 | 50,488 |
| Largest Countries with Little Tourism | 0 | - | 4.71 | 55,747 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 96,276 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 77,806 |
| Tourist Route of Europe | 0 | - | 4.22 | 41,894 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,773 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 334,145 |
| U.S. National Parks Map Quiz | 0 | - | 4.52 | 52,063 |
| World Geography on a Map #1 | 0 | - | 4.93 | 68,253 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,570 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,520 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.35 | 93,765 |
| World Capitals Quiz | 0 | - | 5.00 | 4,573,775 |
| Members of the Arab League | 0 | - | 4.86 | 66,226 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,436 |
| Himalayan Countries | 0 | - | 4.94 | 108,370 |
| Andean Countries | 0 | - | 4.91 | 60,157 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,350 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,827 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,436 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,835 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,250 |
| Danube Countries | 0 | - | 4.96 | 57,219 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,230 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,292 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,692 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,393 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,001 |
| European Landlocked Countries | 0 | - | 4.99 | 137,037 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,798 |
| Countries with the Most Species | 0 | - | 4.99 | 89,855 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,333 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,018 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,314 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,056 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,880 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,118 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,913 |
| Countries in the Alps | 0 | - | 4.84 | 103,844 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.25 | 77,497 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,426 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,483 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,275 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,366 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,892 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,336 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,537 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,771 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,691 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,408 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,168 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,023 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,029 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,575 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,661 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,237 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,532 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,953 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,032 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,440 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,354 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,826 |
| Largest Countries By Category | 0 | - | 4.97 | 146,418 |
| Countries by Countries | 0 | - | 4.95 | 55,593 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,169,156 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,608 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,226,961 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.99 | 136,248 |
| Western Europe Map Quiz | 0 | - | 4.87 | 89,711 |
| Demonyms Quiz | 0 | - | 4.11 | 179,908 |
| Who Controls It? #1 | 0 | - | 4.83 | 45,871 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 183,100 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 111,849 |
| Longest International Borders | 0 | - | 4.99 | 236,604 |
| Countries with Three Borders | 0 | - | 4.96 | 32,114 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 36,836 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 41,357 |
| Demonym of Every Country | 0 | - | 4.91 | 50,794 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,407,672 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 344,946 |
| Island Countries Quiz | 0 | - | 4.99 | 668,475 |
| Biggest Countries by Area | 0 | - | 5.00 | 947,132 |
| Northernmost Countries | 0 | - | 4.99 | 330,851 |
| Countries of South America | 0 | - | 5.00 | 809,583 |
| Countries of Oceania | 0 | - | 5.00 | 913,168 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,610,368 |
| Airline Logos | 0 | - | 4.43 | 129,863 |
| Europe Map Quiz | 0 | - | 5.00 | 4,351,368 |
| Foods of the World Quiz | 0 | - | 4.19 | 44,516 |
| Analogies of Countries #1 | 0 | - | 4.88 | 63,440 |
| Five Letter Geography #4 | 0 | - | 4.83 | 67,772 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,328,338 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,254 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,961 |
| Countries with Megacities | 0 | - | 4.99 | 201,741 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,273 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,919 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,189 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,814 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 252,890 |
| Biggest Cities in the World | 0 | - | 4.90 | 702,177 |
| Cities by Tourist Attraction #1 | 0 | - | 3.64 | 80,162 |
| Cities by Famous Street | 0 | - | 4.00 | 47,503 |
| Global Cities on a World Map | 0 | - | 4.92 | 92,881 |
| Northernmost Capital Cities | 0 | - | 4.98 | 95,982 |
| Most Remote Capital Cities | 0 | - | 4.90 | 44,881 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 35,591 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 93,223 |
| Same Letter Country and Capital | 0 | - | 4.99 | 130,155 |
| Countries by Capital City | 0 | - | 4.99 | 51,426 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 67,155 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 106,165 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 74,356 |
| Moved Capital Cities | 0 | - | 4.96 | 67,937 |
| Countries by Official Language | 0 | - | 4.96 | 175,183 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,131 |
| Countries in their Native Language | 0 | - | 4.98 | 180,502 |
| Independence from Whom | 0 | - | 4.99 | 189,292 |
| Subdivisions by Country | 0 | - | 4.84 | 46,884 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,583 |
| Megadiverse Countries | 0 | - | 4.96 | 126,777 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 93,851 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,566 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,802 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,296 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,877 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,601 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,019 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,700 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,845 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,042 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,246 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,925 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,450 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,386 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,008 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,115,681 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,342 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,692 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,668 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,775 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 109,911 |
| Countries With the Most Languages | 0 | - | 4.90 | 177,630 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,665 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,029 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,231 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 55,056 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,535 |
| Widest Countries East to West | 0 | - | 4.93 | 120,512 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,114 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,493 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,809 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,396 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,607 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,613 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,448 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,791 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,402 |
| Airlines by Country | 0 | - | 4.52 | 126,830 |
| Countries with Double Letters | 0 | - | 4.96 | 71,747 |
| Countries that End in N | 0 | - | 4.94 | 135,913 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 233,761 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 190,465 |
| Countries with W | 0 | - | 4.96 | 125,597 |
| Countries with Z | 0 | - | 4.98 | 264,550 |
| Countries with Letters Missing | 0 | - | 4.97 | 169,640 |
| Countries That End in U | 0 | - | 4.95 | 109,308 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,306 |
| Countries that End in O | 0 | - | 4.92 | 148,617 |
| Countries that End in R | 0 | - | 4.85 | 97,292 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,067 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,078 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,655 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,657 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,600 |
| Countries That End in Y | 0 | - | 4.90 | 162,386 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,929 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,336 |
